Analysis Overview

This analysis quantifies relationships between SPCC 1.0 Refined Smoothed Roadway Segments and households with no access to vehicles as identified in the 2018 Census American Community Survey (ACS).

Mapping

SPCC 1.0 Segments by Density of Zero Vehicle Households

The following map presents all roadway segments in the SPCC 1.0 Refined Smoothed dataset, symbolized based on the quantile ranking of zero vehicle households per acre per Census block group that the roadway traverses. Zero vehicle household density was calculated by generating four quantiles across the entire D4 study area in addition to one classification for block groups where there is no data.

Tables and Charts

Zero Vehicle Households Quantiles by SPCC 1.0 Refined Smoothed Classification

The following table and charts present the absolute and relative presence of each of the five zero vehicle household quantile classifications for each SPCC 1.0 Refined Smoothed classification. Numbers are presented as either linear feet (absolute) or portion of total linear feet.

SPCC 1.0
0-Vehicle Household Density Quantile - Absolute
SPCC 1.0 Quant. 1 (low density) Quant. 2 (med. low) Quant. 3 (med. high) Quant. 4 (high) No 0-Vehicle Data
C1 - Natural 446,808 890,577 43,411 15,422 804,745
C2 - Rural 263,340 1,388,613 71,738 2,248 978,135
C3C- Suburban Commercial 5,525 877,897 583,388 354,193 678,106
C3R - Suburban Residential 28,867 2,453,930 1,467,744 579,091 2,028,364
C4 - Urban General NA 921,203 1,968,949 2,157,432 1,107,163
C5 - Urban Center NA 4,955 26,460 76,548 18,710
C6 - Urban Core NA NA 7,265 69,702 4,365
Special District NA 28,233 13,090 2,837 24,628

The following table presents the same data as above, but instead of absolute linear feet of roadway per quantile, the table provides the percent breakdown of all quantiles across each SPCC classification.

SPCC 1.0
0-Vehicle Household Density Quantile - Percent
SPCC 1.0 Quant. 1 (low density) Quant. 2 (med. low) Quant. 3 (med. high) Quant. 4 (high) No 0-Vehicle Data
C1 - Natural 20.3% 40.5% 2.0% 0.7% 36.6%
C2 - Rural 9.7% 51.4% 2.7% 0.1% 36.2%
C3C- Suburban Commercial 0.2% 35.1% 23.3% 14.2% 27.1%
C3R - Suburban Residential 0.4% 37.4% 22.4% 8.8% 30.9%
C4 - Urban General NA 15.0% 32.0% 35.1% 18.0%
C5 - Urban Center NA 3.9% 20.9% 60.4% 14.8%
C6 - Urban Core NA NA 8.9% 85.7% 5.4%
Special District NA 41.0% 19.0% 4.1% 35.8%